Yonghong Song ac4e0e055f tools/bpftool: move set_max_rlimit() before __bpf_object__open_xattr() ... For a host which has a lower rlimit for max locked memory (e.g., 64KB), the following error occurs in one of our production systems: # /usr/sbin/bpftool prog load /paragon/pods/52877437/home/mark.o \ /sys/fs/bpf/paragon_mark_21 type cgroup/skb \ map idx 0 pinned /sys/fs/bpf/paragon_map_21 libbpf: Error in bpf_object__probe_name():Operation not permitted(1). Couldn't load basic 'r0 = 0' BPF program. Error: failed to open object file The reason is due to low locked memory during bpf_object__probe_name() which probes whether program name is supported in kernel or not during __bpf_object__open_xattr(). bpftool program load already tries to relax mlock rlimit before bpf_object__load(). Let us move set_max_rlimit() before __bpf_object__open_xattr(), which fixed the issue here. Fixes: 47eff61777 ("bpf, libbpf: introduce bpf_object__probe_caps to test BPF capabilities") Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2019-05-16 11:44:50 -07:00
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bpftool	tools/bpftool: move set_max_rlimit() before __bpf_object__open_xattr()	2019-05-16 11:44:50 -07:00
.gitignore	tools/bpftool: ignore build products	2018-07-26 02:50:26 +02:00
bpf_asm.c
bpf_dbg.c	bpf: fix uninitialized variable in bpf tools	2018-04-26 22:23:02 +02:00
bpf_exp.l	bpf: fix cbpf parser bug for octal numbers	2018-06-03 07:46:55 -07:00
bpf_exp.y
bpf_jit_disasm.c	tools/bpf_jit_disasm: silence a static checker warning	2018-01-18 22:15:37 +01:00
Makefile	bpf: fix for lex/yacc build error with gcc-5	2018-04-25 23:27:46 +02:00
Makefile.helpers	tools: bpf: build and install man page for eBPF helpers from bpftool/	2018-07-12 18:55:53 +02:00